Válvulas EGR y piezas para Chevrolet Equinox

EGR Valves & Parts for Chevrolet Equinox

EGR Valves are important parts of the engine of your Chevrolet Equinox. Making sure your Equinox has the right valve and accessories is important to the overall functionality of your vehicle. The EGR is an excellent example of this; these valves are an integral component in the cars emissions system.

How does an EGR valve work in your Chevy Equinox?

EGR stands for Exhaust Gas Recirculation. The EGR system reduces combustion chamber temperature to lower than 2500 degrees Fahrenheit. When the combustion chamber reaches temperatures above 2500 degrees Fahrenheit, nitrous oxide exhaust increases significantly. By allowing a small intake of this exhaust gas back into the intake, the EGR system prevents gas buildup.

What are the symptoms of a failing EGR valve?
  • One of the biggest signs you need to replace your EGR system is rough idling in your Chevrolet. Sometimes, the valves get stuck in the open position, causing a re-circulation of exhaust through the system. That re-circulation of gases causes rough idling to occur.
  • Another sign of EGR failure is a fuel detonation noise that is made when the valve remains shut when the engine is at a high RPM. It is generally a knocking noise from your engine.
  • Increase in emission of nitrous oxide gases.
  • Overall erratic engine functioning in your Chevrolet Equinox.
  • Newer cars will show an engine code that specifically points to the EGR valve and diagnoses the problem that its having. Mechanics can plug a special machine into a car that is displaying the above symptoms and read the error code to best know how to repair your car.
What are the benefits of an EGR valve?

The EGR is a part of the emissions package of your vehicle. Many drivers are required to pass annual emissions testing as a part of their local laws. The EGR is a necessary component to pass many of these tests. Use of an EGR can also increase the fuel efficiency of your vehicle.

What are the different types of EGR valves?
  • Pneumatic: These valves are activated by vacuum through electromagnetic valves which typically only have open and closed functions.
  • Electric: These are activated directly by the engine control unit. There are two sub-types: Linear Electric and ECU Controlled EGR solenoid with vacuum operated.
  • Electric With Cooler Modules: These models provide additional protection against combustion temperatures and control of emissions.
  • DC Motor With Hall Sensor Response: These units are fitted for more opening force and quicker response time for diesel applications.